Personally i never liked the idea of everybody starts in the same area (post training or tutorial) and all the cities are linked to a level cap so most of the cities will be empty and probabily never be visited by 90% of the players. I liked how FFXIV adressed this, with the Major continents by Race (and other mmorpgs with multiple starting cities as well).
If we have 4 basic classes, why not have 4 basic cities and a Capital., all the zones arround each city can have low level monsters and basic quests tied to your basic class and make some progess around it but without interferring a main quest scenario based on traveling trough every place and experience different maps and have the feeling to be part to one of those cities. I call this because, it’s feels so odd, having all the classes mixed up in the same city.
I know this is a beta, but having only 3 cities in the entire World Map? And one of them only for level 400+?